<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style type="text/css">
			*{
				margin: 0;
				padding: 0;
			}
			[class^="box"]{
				border: 1px solid #000000;
				width: 100px;
				height: 100px;
				margin: 10px;
				text-align: center;
				line-height: 100px;
				background: #FFCCCC;
				box-sizing: border-box;
			}
			.box1{
				position: fixed;
				top: 0;
				right: 0;
				background: skyblue;
			}
		</style>
	</head>
	<body>
		<div class="box1">box1</div>
		<div class="box2">box2</div>
		<div class="box3">box3</div>
		<div class="box4">box4</div>
	</body>
</html>
